Prosecutors began building their case Monday against former President Donald Trump in the first criminal trial against an ex-president‚ telling jurors he committed tax and election crimes to hush up bad press ahead of the 2016 election. Mr. Trump and tabloid allies used “catch-and-kill” tactics to stiff-arm bad press before the 2016 election and then lied about it on business records “over and over and over again‚” they told the jurors. Manhattan District Attorney Alvin Bragg’s team put...